<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>第三天作业</title>
    <link rel="stylesheet" href="css/ding.css">
</head>
<body>
    <ul class="contain">
        <li>
            <h3>采购1</h3>
            <p>hello world</p>
        </li>
        <li>
            <h3>采购2</h3>
            <p>hello world</p>
        </li>
        <li>
            <h3>采购3</h3>
            <p>hello world</p>
        </li>
        <li>
            <h3>采购4</h3>
            <p>hello world</p>
        </li>
    </ul>
</body>
</html>